Vet World Vol.14 May-2021 Article-39
Research Article
Veterinary World, 14(5): 1363-1370
https://doi.org/10.14202/vetworld.2021.1363-1370
Genital lesions in cows naturally infected with trypanosomes in Abuja, Nigeria
2. Department of Theriogenology and Production, Faculty of Veterinary Medicine, Ahmadu Bello University, Nigeria.
3. Department of Animal Science, Faculty of Agriculture, Federal University of Lafia, Nigeria.
4. Department of Veterinary Pathology, Faculty of Veterinary Medicine, University of Abuja, Nigeria.
Background and Aim: Different species of trypanosomes have been reported to cause varying degrees of reproductive disorders in pregnant and non-pregnant animals under experimental infections. Information on reproductive disorders and losses in animals naturally infected with trypanosome species are few. This study was carried out to assess the abnormalities in the genital organs (ovaries, oviduct, uterus, cervix, and vagina) of female cattle naturally infected with trypanosomes in and around Abuja, Nigeria.
Materials and Methods: Cows showing signs such as emaciation, weakness, or anemia were selected and examined at Gwagwalada and Karu abattoirs, respectively. Venous blood samples were taken from 108 of such animals and screened using standard trypanosome detection methods. The genital organs were also collected and inspected for gross and histopathological lesions in the laboratory.
Results: Six (5.55%) out of the 108 animals were positive for trypanosomes; 4 (66.7%) were infected with Trypanosoma vivax and 2 (33.3%) were infected with Trypanosoma congolense. The mean packed cell volume of the infected animals was 22.83%. Grossly, congestion and ecchymotic hemorrhages were observed in the endometrium, myometrium, and cervical submucosa. Mucometra, hydrometra, and pyometra were also seen in the uterus. Histologically, necrosis of the epithelium and endometrial glands accompanied by mononuclear cellular infiltration was observed in the uterus. There was also sloughing of the endometrial epithelium, vascular congestion, and hypertrophy of serosa of the uterus. There was atropy of the granulosa cells, increased numbers of degenerating tertiary follicles, and absence of corpora lutea in the ovary. No gross or histopathological lesions were observed in the fallopian tube and vagina.
Conclusion: The lesions observed were restricted to the uterus and ovary of the animals and were less severe when compared to lesions observed under experimental conditions as reported by previous authors. Keywords: Abuja, cow, genital organs, lesions, trypanosomosis.
Keywords: Abuja, cow, genital organs, lesions, trypanosomosis.
How to cite this article: Abah KO, Ogwu D, Allam L, Obudu CE, Itodo JI, Sani NA (2021) Genital lesions in cows naturally infected with trypanosomes in Abuja, Nigeria, Veterinary World, 14(5): 1363-1370.
Received: 13-05-2020 Accepted: 16-04-2021 Published online: 29-05-2021
Corresponding author: Kenneth Owoicho Abah E-mail: kennethabah34@yahoo.com
DOI: 10.14202/vetworld.2021.1363-1370
Copyright: Abah, et al. This article is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http:// creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.